up to the average达到平均水准
above/below average高于/低于平均水平
on (the/an) average平均地||；通常||；按平均值
Take the average of those ratios and multiply by a hundred.
算出那些比率的平均值再乘以100。
她做过许多不同的工作||，从厨师到游平均的||；普通的(normal)||；典型的(typical)||；n.平均数||；平均水平||；v.平均为||；计算出……的平均数(be equal to...as an average
an average of...……的平均数
去年春天||，由于疏忽大意造成了工程的坍塌。
That came about when we went to Glastonbury last year.
那是我们去年去格拉斯顿伯里的时候发生的事。
特别提醒
come about相当于happen或occur||，均无被动形式。
2
subscribe for sth.认购……
Quantities of food and tents were sent to Ya’ an from Shandong.
大量的食品和帐篷从山东运到了雅安。
My brother bought a large quantity of books.
我弟弟买了大量的书。
2
tend to do...倾向于做……||；往往会……
tend sb.照顾某人
have a tendency to do sth.有做某事的倾向
The nurse skillfully tended soldiers’ wounds.
护士熟练地护理着那些士兵的伤口。
3
oppose A against/to B使A与B相对抗
oppose doing sth.反对做某事
2)、一般疑问句的强调句型：______________________________________
3)、特殊疑问句的强调句型：_______________________________________
1
in quantity大量
quantities of＋名词＋复数谓语动词许多……
a quantity of＋复数名词＋复数谓语动词/＋不可数名词＋单数谓语动词大量……
4
It is stated that...据称……
as stated above如上所述
in a...state处于……状态
make a statement陈述||；发表声明
For the first few months after Daniel died||，I was in a state of clinical depression.
How does it come about that...？……是怎样发生的？
come across偶遇||；被理解
when it comes to...当谈到……
come up with想出(主意)||；找到(答案)
As a result of carelessness||，the project collapse came about in the last spring.
it的用法(2)
It用于强调句型中
1．It is/was＋被强调部分＋that/who＋其他||，这个句型可以强调主语、宾语、介词短语及状语。
I met Tom in the park yesterday.
→It wasin the parkthatI met Tom yesterday.
2．强调句的特殊疑问句句型为：特殊疑问词＋is/was it that/who＋陈述句
口语中相当于“Don't worry.”或“Don't hurry.”||，用来劝告别人||，表示“不要慌、沉住气、别担心”。2·1·c·n·j·y
Take it easy!He will do it well!
3．It all depends./That all depends.
口语中相当于“It hasn't been decided yet.”表示“那得看情况||，还未定下来。”中/华-21世纪1
复习预习：
1、上节课作业订正。
2、it可以帮助构成强调句
1)、陈述句的强调句型：______________________________________________
需要注意的地方：
* It在这一结构中作主句的主语||，所以即使被强调部分是复数名词||，也要用___或____
*如果被强调部分是时间、地点、方式或原因依然用_____||；强调人时可以用____或__
4．It is/was not until＋被强调部分＋that...
I didn't realize she was a famous film star until she took off her dark glasses.
→It was not untilshe took off her glassesthatI realized she was a famous film star.
What did you want to find yesterday?
→Whatwas it thatyouwantedto find yesterday?
3．强调句与名词性从句的结合
I want to know what you wanted to find yesterday.
→I want to know whatit was thatyou wanted to find yesterday.
within/in the range of在……范围之内range from...to...从……到……之间变化
range between...and...在……到……之间变动
A wide range of colors and patterns are available.各种颜色和样式都有。
She has had a number of different jobs||，ranging from chef to swimming instructor.
be opposed to反对
as opposed to与……相对照||；而非
The king couldn’t bear anyone to oppose him.
国王不能忍受任何人反抗他。
The father is opposed to his son’s marriage.
爸爸反对儿子的婚事。
2. exist v.存在
existence n.存在
3.state v.陈述||，说明
statement n.声明||，阐述
4. environment n.环境
environmental adj.周围的||，环境的
environmentalist n.环境保护主义者
1
It comes about that...……发生。
American shares rose||，on average||，by 38%.
美国股票价格平均上涨了38%。
7
It is advocated that...主张||，提倡……
advocate doing...主张做……
an advocate of/for支持……的人
He was a strong advocate of free market policies and the multiparty system.
您拨打的用户已关机。
3
I’m calling on behalf of Mr. Black.
我是代布莱克先生打电话来的。
I apologize to you on behalf of the hotel.
我谨代表旅馆向你们道歉。
It is OK to leave an electrical appliance on so long as you are using it—if not||，turn it off！只要你在使用电器设备||，你便可以把它开着。如果不用就把它关掉！
适用学科
高中英语
适用年级
高二
适用区域
人教新课标版
课时时长（分钟）
2课时
知识点
1单词学习及辨析
2“it”的用法(2)
3句型学习
教学目标
1.掌握本单元重点词汇的基本含义与用法||；
2.锻炼提升写作能力。
教学重点
1.重点的词汇与句型||；
2.书面表达的书写思路。
教学难点
如何准确地运用重要词汇和句型进行表达
在当时那种一触即发的形势下||，采取那样的策略太危险了。
I wish we could have met under happier circumstances.
我真希望我们是在更愉快的情况下相识的。
本单元单词词性变化归纳
1.agree v.同意
disagree v.不同意
agreement/disagreement n.同意/不同意
丹尼尔去世后的最初几个月里||，我一直处于临床抑郁症的状态。
He stated that he knew nothing about the accident.
他声称对那起事故一无所知。
5 range n．批||；组||；范围||；山脉||；v.变动||，变化||；排列||；涉及
beyond/out of one’s range/the range of sb.超出某人的范围
－It's up to you.